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Finding the Fourth Proportional to 482,125.96, 665,339.84 and 278,219.20

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Solution

The fourth proportional to 482,125.96, 665,339.84 and 278,219.20 is: 383,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,125.96 : 665,339.84 = 278,219.20 : x
  2. Step 2: Convert to fraction form
    482,125.96/665,339.84 = 278,219.20/x
  3. Step 3: Cross multiply
    482,125.96x = 665,339.84 × 278,219.20
  4. Step 4: Simplify right side
    482,125.96x = 185,110,318,012.93
  5. Step 5: Solve for x
    x = 185,110,318,012.93/482,125.96
  6. Step 6: Final answer
    x = 383,945.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.